Soap valve



y 7- KOOPERSTEIN SOAP VALVE Filed June 9, 1926 INVENTOR' [0w K W ATTORNEY Patented May 3, 1927. Y

' UNITED STATES PATENT orriron.

"LOUIS KooP'E'RsTEImbr NEW YORK, N. Y., f-Assmiron 'ro nr'snvr so'rme com- :r-ANY, or YORK, Y.,-A CORPORATION 01* NEW YORK.

' soar VALVE.

Application filed June 9,

The object of the present invention is to provide soap dispensing apparatus of that type in which a charge of soap is e]ected through the nozzle of a hand operated valve. The specific object of the invention s to provide an effective dispensing valve of the said type which shall be particularly adapted for use when the charge of soap is under high pressure, the valve also being adapted for soap under low pressure. In the operation of the device the soap is not discharged from the valve by displacement through the projection of a plunger or the like into the valve, but is ejected through pressure and/or gravity.

The invention will be understood by reference to the accompanying drawings, III which Figure 1 is a View in sectional elevation of an embodiment of the invention, and

Figure 2 is a transverse section on the line 2-2, Figure 1.

Referring to Figure 1 of the drawings A represents a casing, the latter being provided with a longitudinal extending soap receiving chamber 1, having a forward reduced bore 2. The casing is threaded at 3 so as to be connected to a feed pipe 4 either directly or through the intermediary of a coupling member 5. At the rear end of the chamber is a plug which in the present embodiment is formed integrally with the coupling 5, the plug being formed with a soap inlet duct 6.

In the present embodiment of the invention the casing A is formed with a dome 7. The exterior wall of the dome may be threaded to receive amp 8 having a flange 8 to hold in place a porcelain or glass disk ,3 which may bear a name or other designation. Reduced bore 2 is normally shut off from chamber 1 by a valve disk 10, the disk carrying washers 11 and being pressed upon its seat by a coiled spring 12. Valve disk is formed with a central longitudinal aperture to receive a rod 13, the rod being formed with a collar 14 which collar is nor mally pressed against a washer 15 by means of a coiled spring 16. The right hand end of rod 13 normally projects forwardly of valve disk 10 and in register with push rod 16, the latter rod being longitudinally movable through suitable apertures formed in washers 17 and threaded compression disk 18. The outer end of the push rod may be 1926. Serial No; 114,731.

formed with an axial threaded aperture to receive the threaded stem of a thumbpiece 19.

Rod 13 is provided with a duct 20 which extends from the front of the rod a short distance axially thereof and then extends to the surface of the rod. The rear end of duct 20 is normally closed by disk 10.

In the operation of the device the soap' passing through pipe 4 under pressure will flow into chamber 1 and will pass upwardly into dome 7 until the air entrapped in the dome above the soap level will prevent further rise of the soap. When push rod 16 is moved rearwardly it will move rod 13 forwardly until pin 13* closes soap passage 6. At this point the continued movement of rod 13 will bring the rear end of duct 20 into communication with the chamber and soap will flow through duct 20 and'through the nozzle (1. When the soap is under high pressure, sufficient soap will flow through duct 20 on such movement of the push rod. However, in order to quickly increase the amount of soap, it is only necessary to continue the rearward movement of the push rod and Valve disk 10 will become unseated and soap will flow around it and through the large area of bore 2 and thence through the nozzle.

It will be understood that when pin 13 closes soap passage 6 and shuts off chamber 1 from the main pressure, there will still be maintained a pressure within the chamber by the entrapped air in dome 7. The initial forwardmovement of rod 13 is slight and as soon as duct 20 comes into communication with the soap chamber the high pressure is released in said chamber by the flow of soap through the duct.

Having described my invention what I claim and desire to secure by Letters Patent is as follows 1. A soap valve comprising a casing provided with an inlet and an outlet passage, a valve disk normally shutting off the outlet from the inlet, a rod supported by the valve disk and provided with a duct normally closed by the disk, means carried by the rod for closing the inlet and means for successively actuating the rod and the valve disk to first close the inlet and open the duct for passage of soap to the discharge outlet and secondly permit the passage of soap around the valve disk to the outlet.

2. A soap dispensing valve provided with a soap chamber, an inlet and an outlet, a valve disk normally closing the outlet, a rod slidably movable Within the valve disk and provided with a duct normally closed by the disk, springs acting upon the rod and the disk, a pin carried by the rod and adapted to close the inlet and a push rod adapted to first actuate the first named rod and secondly actuate the valve disk.

3. A device constructed in accordance with claim 1 in which the soap chamber eX- tends about the valve disk and a secondary chamber is provided in advance of the soap chamber of smaller diameter than the latter, the outlet communicating with said secondary chamber thereby enabling passage of soap to the outlet upon a slight movement of the valve disk rearwardly of the secondary chamber.

In testimony whereof I have signed my 20 

